Wembley Stadium is lit blue to honour the efforts of NHS(National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Residents in their apartments clap for the NHS (National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Wembley Stadium is lit blue to honour the efforts of NHS(National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Residents in their apartments clap for the NHS (National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Wembley Stadium is lit blue to honour the efforts of NHS(National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Residents in their apartments clap for the NHS (National Health Service) workers fighting the coronavirus outbreak in northwest London, Britain on April 9, 2020. (Photo by Ray Tang/Xinhua)

Photo taken on April 9, 2020 shows a message thanking NHS (National Health Service) workers in front of Wembley Stadium in northwest London, Britain. (Photo by Ray Tang/Xinhua)